Vintage OEM Socket 3 motherboard with an installed IBM 486 DX4-100 processor.

The exact motherboard manufacturer and model are unknown. The board features a UMC chipset, AMI BIOS, ISA expansion slots, and VESA Local Bus (VLB) slots.

Installed processor markings:

* IBM 486 DX4

* IBM26 486-4V4100GC

The motherboard is in excellent vintage cosmetic condition with no visible damage or defects. Please review all photos carefully for the exact cosmetic condition.

Sold exactly as pictured. No additional accessories, cables, manuals, or expansion cards are included unless shown in the photos.

Features

* IBM 486 DX4-100 CPU installed

* Socket 3 motherboard

* UMC chipset

* AMI BIOS

* 4 × 72-pin SIMM memory slots

* One SIMM memory module installed

* 3 × VESA Local Bus (VLB) slots

* ISA expansion slots

* External battery connector

* Keyboard connector

Item Specifics

* Brand: Unbranded / OEM

* Model: Unknown

* Type: Motherboard

* CPU Socket Type: Socket 3

* Processor Included: Yes

* Processor Brand: IBM

* Processor Model: IBM 486 DX4-100

* Processor Speed: 100 MHz

* Chipset Manufacturer: UMC

* Chipset Model: UM8498F

* BIOS: AMI BIOS

* Memory Type: 72-Pin SIMM

* Memory Slots: 4

* Expansion Slots: ISA, VESA Local Bus (VLB)

* Vintage: Yes

* Condition: Used

Condition

Excellent vintage cosmetic condition with no visible damage or defects. Sold exactly as shown in the photographs. Please refer to the pictures for details of the item’s condition.